<template>
  <div class="cart" @click="couponAvailable = false">
    <BaseHeader></BaseHeader>
    <!-- LOGO 搜索 -->
    <div class="width_1200 logo">
      <div>
        <router-link to="/"><img :src="$store.state.logoImg" /></router-link>
        <div>
          Shopping cart(<span>{{ goodsTotal }}</span>)
        </div>
      </div>

    </div>
    <Divider />
    <!-- 购物车主体 -->
    <div class="cart-content width_1200 center">
      <div class="available-area">
        <div class="cart-steps">
          <span :class="stepIndex == 0 ? 'active' : ''">1.My shopping cart</span>
          <Icon :class="stepIndex == 0 ? 'active-arrow' : ''" custom="icomoon icon-next"></Icon>
          <span :class="stepIndex == 1 ? 'active' : ''">2.Fill in the order information</span>
          <Icon :class="stepIndex == 1 ? 'active-arrow' : ''" custom="icomoon icon-next"></Icon>
          <span :class="stepIndex == 2 ? 'active' : ''">3.Successfully submit order</span>
        </div>
      </div>
      <!-- 购物车商品列表 -->
      <div class="cart-goods">
        <div class="cart-goods-title">
          <div class="width_100">
            <Checkbox v-model="allChecked" @on-change="changeChecked(allChecked, 'all')">select all</Checkbox>
          </div>
          <div class="goods-title">product</div>
          <div class="width_150">Unit price ($)</div>
          <div class="width_100">quantity</div>
          <div class="width_150">subtotal</div>
          <div class="width_100">controls</div>
        </div>
        <div v-if="storgeList.length === 0" class="cart-empty">
          <p>Shopping carts are empty</p>
          <router-link to="/">Go shopping&gt;</router-link>
        </div>
        <div v-else class="cart-goods-items" v-for="(item, index) in storgeList" :key="index">
          <div class="goods-item">
            <div class="width_60">
              <Checkbox v-model="item.checked" @on-change="
                changeChecked(item.checked, 'goods', item.id)
                "></Checkbox>
            </div>
            <div class="goods-title">
              <img :src="item.img ||
                '../assets/images/goodsDetail/item-detail-1.jpg'
                " />
              <p>
                {{ item.title }}
              </p>
            </div>
            <div class="width_150">
              {{ item.price | unitPrice("$") }}
            </div>
            <div class="width_100">
              <InputNumber :min="1" size="small" v-model="item.count"
                @on-change="changeNum(item.count, item.id)">
              </InputNumber>
            </div>
            <div class="width_150">
              {{ item.price*item.count | unitPrice("$") }}
            </div>
            <div class="width_100">
              <Button size="small" type="primary"
                @click="delGoods(item.id)">delete</Button>
            </div>
          </div>
        </div>
        <!-- 底部支付栏 -->
        <div class="cart-goods-footer">
          <div>
            <div class="width_100">
              <Checkbox v-model="allChecked" @on-change="changeChecked(allChecked, 'all')">select all</Checkbox>
            </div>
            <!-- <div class="width_100 handle-btn" @click="delGoods()">
              Remove selected items
            </div> -->
            <!-- <div class="width_100 handle-btn" @click="collectGoods">移到我的收藏</div> -->
            <div class="width_100 handle-btn" @click="clearCart">
              Empty cart
            </div>
          </div>
          <div>
            <div class="selected-count">
              Selected<span>{{ checkedNum }}</span>Piece of product
            </div>
            <div class="ml_20 save-price">
              Saved<span>{{
                priceDetailDTO.discountPrice | unitPrice("$")
                }}</span>
            </div>
            <div class="ml_20 total-price">
              Total price (excluding shipping):
              <div>{{ totalPrice | unitPrice("$") }}</div>
            </div>
            <div class="pay ml_20" @click="pay">Go to Result</div>
          </div>
        </div>
      </div>
      <Spin size="large" fix v-if="loading"></Spin>
    </div>
    <BaseFooter class="footer"></BaseFooter>
  </div>
</template>

<script>
import Promotion from "@/components/goodsDetail/Promotion";
import Search from "@/components/Search";
import * as APICart from "@/api/cart";
import * as APIMember from "@/api/member";
export default {
  name: "Cart",
  beforeRouteEnter(to, from, next) {
    window.scrollTo(0, 0);
    next();
  },
  components: {
    Search,
    Promotion,
  },
  data() {
    return {
      couponAvailable: false, // 展示优惠券
      stepIndex: 0, // 当前处于哪一步，购物车==0，填写订单信息==1，成功提交订单==2
      goodsTotal: 0, // 商品数量
      checkedNum: 0, // 选中数量
      allChecked: false, // 全选
      loading: false, // 加载状态
      cartList: [], // 购物车列表
      couponList: [], // 优惠券列表
      priceDetailDTO: {}, // 价格明细
      skuList: [], // sku列表
      storgeList: [], // 本地存储的商品列表
      totalPrice: 0, // 总价
    };
  },
  methods: {
    // 跳转商品详情
    goGoodsDetail(skuId, goodsId) {
      let routeUrl = this.$router.resolve({
        path: "/goodsDetail",
        query: { skuId, goodsId },
      });
      window.open(routeUrl.href, "_blank");
    },
    // 跳转店铺首页
    goShopPage(id) {
      let routeUrl = this.$router.resolve({
        path: "/Merchant",
        query: { id },
      });
      window.open(routeUrl.href, "_blank");
    },
    // 收藏商品
    collectGoods(id) {
      this.$Modal.confirm({
        title: "Collect",
        content: "<p>Merchandise collection can be viewed in the personal center My collection</p>",
        onOk: () => {
          APIMember.collectGoods("GOODS", id).then((res) => {
            if (res.success) {
              this.$Message.success("Collection success");
              this.getCartList();
            }
          });
        },
        onCancel: () => { },
      });
    },
    // 删除商品
    delGoods(id) {
      const idArr = [];
      if (!id) {
        const list = this.cartList;
        list.forEach((shop) => {
          shop.skuList.forEach((goods) => {
            if (goods.checked) {
              idArr.push(goods.goodsSku.id);
            }
          });
        });
      } else {
        idArr.push(id);
      }
      this.$Modal.confirm({
        title: "delete",
        content: "<p>Are you sure you want to delete this item?</p>",
        onOk: () => {
          APICart.delCartGoods({ skuIds: idArr.toString() }).then((res) => {
            if (res.success) {
              this.$Message.success("Successfully deleted");
              this.getCartList();
            } else {
              this.$Message.error(res.message);
            }
          });
        },
      });
    },
    // 清空购物车
    clearCart() {
      this.$Modal.confirm({
        title: "Tips",
        content: "<p>Are you sure you want to empty your cart? Cannot be restored after clearing</p>",
        onOk: () => {
          APICart.clearCart().then((res) => {
            if (res.success) {
              this.$Message.success("Empty cart successfully");
              this.getCartList();
            } else {
              this.$Message.error(res.message);
            }
          });
        },
      });
    },
    // 跳转支付页面
    pay() {
      if (this.checkedNum) {
        let checkedList = this.storgeList.filter((item) => item.checked);
        localStorage.setItem("payList", JSON.stringify(checkedList));
        this.$router.push({ path: "/pay", query: { way: "CART" } });
      } else {
        this.$Message.warning("Please select at least one item");
      }
    },
    // 展示优惠券
    showCoupon(storeId, index) {
      this.couponAvailable = index;
    },
    // 设置购买数量
    changeNum(val, id) {
      if (val) {
        this.totalPrice = this.storgeList.reduce((total, item) => {
          if (item.checked) {
            total += item.price * item.count;
          }
          return total;
        }, 0);
        // APICart.setCartGoodsNum({ skuId: id, num: val }).then((res) => {
        //   if (res.success) {
        //     this.getCartList();
        //   }
        // });
      }
    },
    // 设置商品选中状态
    async changeChecked(status, type, id) {
      console.log(status, type, id);
      const check = status ? 1 : 0;
      if (type === "all") {
        // 全选
        this.storgeList.forEach((item) => {
          item.checked = status;
        });
        await APICart.setCheckedAll({ checked: check });
      } else if (type === "shop") {
        // 选中店铺所有商品
        await APICart.setCheckedSeller({ checked: check, storeId: id });
      } else {
        // 单个商品
        await APICart.setCheckedGoods({ checked: check, skuId: id });
      }
      this.totalPrice = this.storgeList.reduce((total, item) => {
        if (item.checked) {
          this.checkedNum ++;
          total += item.price * item.count;
        }else{
          this.checkedNum --;
        }
        return total;
      }, 0);
      console.log(this.totalPrice);
      console.log(this.checkedNum)

      this.getCartList();
    },
    // 领取优惠券
    async receiveShopCoupon(item) {
      let res = await APIMember.receiveCoupon(item.id);
      if (res.success) {
        this.$set(item, "disabled", true);
        this.$Message.success("Receive successfully");
      } else {
        this.$Message.error(res.message);
      }
    },
    // 购物车列表
    async getCartList() {
      this.loading = true;
      try {
        let res = await APICart.cartGoodsAll();
        this.loading = false;
        if (res.success) {
          this.cartList = res.result.cartList;
          this.priceDetailDTO = res.result.priceDetailDTO;
          this.skuList = res.result.skuList;
          // this.checkedNum = 0;
          // let allChecked = true;
          for (let k = 0; k < this.cartList.length; k++) {
            let shop = this.cartList[k];
            let list = await APIMember.couponList({ storeId: shop.storeId });
            shop.couponList.push(...list.result.records);
          }
          for (let i = 0; i < this.skuList.length; i++) {
            if (this.skuList[i].checked) {
              // this.checkedNum += this.skuList[i].num;
            } else {
              allChecked = false;
            }
          }
          this.$forceUpdate();
          this.allChecked = allChecked;
        }
      } catch (error) {
        this.loading = false;
      }
    },
  },
  mounted() {
    this.storgeList = JSON.parse(localStorage.getItem("cartList")) || [];
    console.log(this.storgeList);
    this.getCartList();
    APICart.cartCount().then((res) => {
      // 购物车商品数量
      if (res.success) this.goodsTotal = res.result;
    });
  },
};
</script>

<style scoped lang="scss">
.footer {
  margin-top: 10px;
}

/** logo 搜索 start **/
.logo {
  height: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 20px auto 0;

  div:nth-child(1) {
    display: flex;
    justify-content: space-between;
    align-items: center;

    img {
      width: 60px;
      height: auto;
      cursor: pointer;
    }

    div:nth-child(2) {
      width: 200px;
      color: #999;
      font-size: 16px;
      margin: 0 20px;

      span {
        color: $theme_color;
      }
    }
  }
}

.cart-content {
  margin: 0 auto;
  width: 1200px;
  position: relative;
}

/** logo end */
/** step步骤条 */
.cart-steps {
  height: 30px;
  display: flex;
  align-items: center;
  margin-bottom: 15px;

  span {
    @include content_color($light_content_color);
    height: 30px;
    text-align: center;
    line-height: 30px;
    display: inline-block;
    padding: 0 15px;
  }

  .ivu-icon {
    @include content_color($light_content_color);
    font-size: 20px;
    margin: 0 15px;
  }

  .active {
    border-radius: 50px;
    background-color: #ff8f23;
    color: #fff;
  }

  .active-arrow {
    color: #ff8f23;
  }
}

/** 步骤条和配送区域总体 */
.available-area {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 15px;
}

/** 商品列表 */
.cart-goods {
  &-title {
    height: 50px;
    @include background_color($light_white_background_color);
    @include title_color($title_color);
    display: flex;
    align-items: center;
    padding: 0 20px;

    div {
      text-align: center;
    }

    .goods-title {
      flex: 1;
    }
  }

  .cart-empty {
    width: 100%;
    text-align: center;
    height: 300px;
    padding-top: 100px;
  }

  &-items {
    .shop-name {
      height: 50px;
      display: flex;
      align-items: center;
      padding: 0 20px;
      position: relative;
      @include title_color($light_title_color);

      >* {
        width: 50%;
      }

      .go-shop-page:hover {
        color: $theme_color;
        cursor: pointer;
      }

      .customer-service {
        margin-left: 5px;
        color: #fcc217;
        cursor: pointer;

        &:hover {
          color: $theme_color;
        }
      }

      /** 优惠券 */
      .shop-coupon {
        width: 80px;
        height: 24px;
        position: relative;
        background: url(../assets/images/cart-coupon-icons02.png) 0 0 no-repeat;

        >div {
          position: absolute;
          top: 35px;
          left: 0;
          width: 300px;
          height: 300px;
          background-color: #fff;
          border: 1px solid $theme_color;
          // border-radius: 3px;
          z-index: 1;
          padding: 10px 20px;

          &::before {
            content: "";
            display: block;
            background: url(../assets/images/cart-coupon-icons02.png) 0 -58px no-repeat;
            width: 80px;
            height: 12px;
            position: absolute;
            top: -12px;
            left: 0;
          }

          .coupon-item {
            margin-bottom: 10px;

            span:nth-child(1) {
              border: 1px solid #e33937;
              display: inline-block;
              padding: 3px 10px;
              color: $theme_color;
              border-radius: 3px;
            }

            span:nth-child(2) {
              font-size: 12px;
              margin-left: 5px;
              color: #999;
            }

            .coupon-btn {
              height: 26px;
              float: right;
              font-size: 12px;
            }

            &::after {
              display: block;
              content: "";
              clear: right;
            }
          }
        }
      }

      .promotion-notice {
        text-align: right;
        font-size: 12px;
      }

      .shop-coupon-show {
        background-position-y: -34px;
      }
    }

    .goods-item {
      position: relative;
      @extend .cart-goods-title;
      @include background_color($light_white_background_color);
      padding: 10px 20px;
      height: auto;

      >div:nth-child(1) {
        padding-left: 15px;
        width: 30px;
      }

      >div:nth-child(2) {
        cursor: pointer;
        display: flex;
        box-sizing: border-box;
        padding-left: 20px;
        position: relative;

        img {
          width: 70px;
          height: 70px;
        }

        >div>p {
          @include content_color($light_content_color);
          font-size: 13px;
          text-align: left;
          margin-left: 10px;

          &:hover {
            color: $theme_color;
          }
        }
      }

      >div:nth-child(5) {
        font-weight: bold;
      }

      .num-input {
        width: 60px;
        border: 1px solid #999;
        border-radius: 5px;
        padding: 0 5px;

        &:focus {
          outline-color: $theme_color;
        }
      }
    }

    .error-goods {
      position: absolute;
      width: 100%;
      height: 100%;
      margin-left: -20px;
      background-color: rgba($color: #999, $alpha: 0.5);
      z-index: 10;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-left: 150px;
      color: #000;
      padding-right: 30px;
    }
  }

  &-footer {
    @extend .cart-goods-title;
    position: sticky;
    bottom: 0;
    border-top: 1px solid #ddd;
    margin-top: 10px;
    padding: 0 0 0 20px;
    line-height: 50px;
    justify-content: space-between;

    >div {
      display: flex;
    }

    .selected-count {
      span {
        color: $theme_color;
      }
    }

    .save-price span {
      color: #000;
    }

    .total-price div {
      color: $theme_color;
      font-size: 20px;
    }

    .pay {
      background-color: $theme_color;
      width: 150px;
      font-size: 20px;
      color: #fff;
      height: 100%;
      line-height: 50px;
      cursor: pointer;
    }
  }

  .handle-btn {
    font-size: 12px;
    color: $handle-btn-color;
    cursor: pointer;

    &:hover {
      color: $theme_color;
    }
  }
}

.like {
  width: 1200px;
  margin: 10px auto;
  // padding: 20px 0;
  @include white_background_color();
}

.likeGoods,
.shop-nav-container {
  width: 1200px;
  margin: 0 auto;
}

.ivu-divider {
  background: $theme_color;
  height: 2px;
}

.width_150 {
  width: 150px;
}

.width_60 {
  width: 60px;
}

.promotion {
  display: flex;
  margin-top: 5px;
  margin-left: 5px;

  >span {
    border: 1px solid $theme_color;
    color: $theme_color;
    font-size: 12px;
    border-radius: 2px;
    padding: 0 2px;
  }

  >p {
    font-size: 12px;
    margin-left: 10px;
    color: #999;
  }
}

.cart-goods-footer>div {
  display: flex;
  align-items: center;
  overflow: hidden;
}

.total-price {
  display: flex;
  align-items: center;
}
</style>
<style>
.ivu-input-number-input {
  text-align: center;
}
</style>
